./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 16:47:40,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:47:40,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:47:40,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:47:40,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:47:40,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:47:40,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:47:40,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:47:40,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:47:40,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:47:40,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:47:40,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:47:40,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:47:40,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:47:40,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:47:40,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:47:40,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:47:40,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:47:40,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:47:40,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:47:40,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:47:40,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:47:40,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:47:40,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:47:40,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:47:40,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:47:40,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:47:40,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:47:40,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:47:40,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:47:40,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:47:40,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:47:40,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:47:40,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:47:40,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:47:40,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:47:40,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:47:40,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:47:40,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:47:40,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:47:40,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:47:40,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:47:40,285 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:47:40,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:47:40,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:47:40,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:47:40,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:47:40,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:47:40,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:47:40,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:47:40,288 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:47:40,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:47:40,289 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:47:40,290 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:47:40,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:47:40,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:47:40,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:47:40,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:47:40,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:47:40,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:47:40,291 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:47:40,291 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:47:40,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:47:40,292 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:47:40,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:47:40,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:47:40,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:47:40,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:47:40,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:47:40,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:47:40,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:47:40,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:47:40,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:47:40,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:47:40,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:47:40,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:47:40,294 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:47:40,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:47:40,295 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:47:40,295 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:47:40,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:47:40,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:47:40,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:47:40,649 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:47:40,649 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:47:40,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-08-29 16:47:41,739 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:47:42,059 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:47:42,059 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-08-29 16:47:42,082 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac2bddeb/4f62af445832405792c7caa823a0e4c3/FLAGca8243c91 [2023-08-29 16:47:42,101 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac2bddeb/4f62af445832405792c7caa823a0e4c3 [2023-08-29 16:47:42,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:47:42,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:47:42,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:47:42,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:47:42,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:47:42,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac06fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42, skipping insertion in model container [2023-08-29 16:47:42,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:47:42,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:47:42,686 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2023-08-29 16:47:42,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:47:42,706 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:47:42,804 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2023-08-29 16:47:42,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:47:42,889 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:47:42,889 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:47:42,893 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:47:42,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42 WrapperNode [2023-08-29 16:47:42,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:47:42,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:47:42,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:47:42,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:47:42,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,974 INFO L138 Inliner]: procedures = 481, calls = 74, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 471 [2023-08-29 16:47:42,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:47:42,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:47:42,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:47:42,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:47:42,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:42,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:43,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:43,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:43,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:43,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:43,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:47:43,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:47:43,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:47:43,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:47:43,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (1/1) ... [2023-08-29 16:47:43,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:47:43,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:47:43,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 16:47:43,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-08-29 16:47:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:47:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:47:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:47:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:47:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:47:43,117 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 16:47:43,451 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:47:43,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:47:44,058 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:47:44,306 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:47:44,307 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-08-29 16:47:44,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:47:44 BoogieIcfgContainer [2023-08-29 16:47:44,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:47:44,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:47:44,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:47:44,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:47:44,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:47:42" (1/3) ... [2023-08-29 16:47:44,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cff3a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:47:44, skipping insertion in model container [2023-08-29 16:47:44,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:47:42" (2/3) ... [2023-08-29 16:47:44,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cff3a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:47:44, skipping insertion in model container [2023-08-29 16:47:44,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:47:44" (3/3) ... [2023-08-29 16:47:44,320 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2023-08-29 16:47:44,327 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:47:44,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:47:44,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-29 16:47:44,336 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:47:44,483 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 16:47:44,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 316 transitions, 640 flow [2023-08-29 16:47:44,615 INFO L130 PetriNetUnfolder]: 19/336 cut-off events. [2023-08-29 16:47:44,616 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:47:44,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 336 events. 19/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 656 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 246. Up to 4 conditions per place. [2023-08-29 16:47:44,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 316 transitions, 640 flow [2023-08-29 16:47:44,629 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 316 transitions, 640 flow [2023-08-29 16:47:44,632 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:47:44,640 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 316 transitions, 640 flow [2023-08-29 16:47:44,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 316 transitions, 640 flow [2023-08-29 16:47:44,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 316 transitions, 640 flow [2023-08-29 16:47:44,708 INFO L130 PetriNetUnfolder]: 19/336 cut-off events. [2023-08-29 16:47:44,709 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:47:44,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 336 events. 19/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 656 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 246. Up to 4 conditions per place. [2023-08-29 16:47:44,718 INFO L119 LiptonReduction]: Number of co-enabled transitions 11492 [2023-08-29 16:48:30,421 INFO L134 LiptonReduction]: Checked pairs total: 34007 [2023-08-29 16:48:30,421 INFO L136 LiptonReduction]: Total number of compositions: 301 [2023-08-29 16:48:30,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:48:30,439 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bcad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:48:30,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-29 16:48:30,441 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:48:30,441 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:48:30,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:48:30,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:48:30,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 16:48:30,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:48:30,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1708, now seen corresponding path program 1 times [2023-08-29 16:48:30,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:48:30,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914393148] [2023-08-29 16:48:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:48:30,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:48:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:48:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:48:30,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:48:30,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914393148] [2023-08-29 16:48:30,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914393148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:48:30,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:48:30,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:48:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208512050] [2023-08-29 16:48:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:48:30,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:48:30,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:48:30,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:48:30,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:48:30,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 617 [2023-08-29 16:48:30,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 107 transitions, 222 flow. Second operand has 2 states, 2 states have (on average 268.5) internal successors, (537), 2 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:30,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:48:30,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 617 [2023-08-29 16:48:30,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:48:30,947 INFO L130 PetriNetUnfolder]: 148/492 cut-off events. [2023-08-29 16:48:30,947 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2023-08-29 16:48:30,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 492 events. 148/492 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2019 event pairs, 110 based on Foata normal form. 12/411 useless extension candidates. Maximal degree in co-relation 758. Up to 294 conditions per place. [2023-08-29 16:48:30,951 INFO L137 encePairwiseOnDemand]: 588/617 looper letters, 39 selfloop transitions, 0 changer transitions 0/77 dead transitions. [2023-08-29 16:48:30,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 77 transitions, 240 flow [2023-08-29 16:48:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:48:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:48:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 604 transitions. [2023-08-29 16:48:30,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48946515397082657 [2023-08-29 16:48:30,990 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 604 transitions. [2023-08-29 16:48:30,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 604 transitions. [2023-08-29 16:48:30,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:48:30,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 604 transitions. [2023-08-29 16:48:31,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,010 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,011 INFO L175 Difference]: Start difference. First operand has 98 places, 107 transitions, 222 flow. Second operand 2 states and 604 transitions. [2023-08-29 16:48:31,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 77 transitions, 240 flow [2023-08-29 16:48:31,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 77 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:48:31,017 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 162 flow [2023-08-29 16:48:31,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=162, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2023-08-29 16:48:31,023 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -25 predicate places. [2023-08-29 16:48:31,023 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 162 flow [2023-08-29 16:48:31,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 268.5) internal successors, (537), 2 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:48:31,025 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-29 16:48:31,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:48:31,027 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 16:48:31,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:48:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2035310230, now seen corresponding path program 1 times [2023-08-29 16:48:31,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:48:31,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321280003] [2023-08-29 16:48:31,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:48:31,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:48:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:48:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 16:48:31,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:48:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321280003] [2023-08-29 16:48:31,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321280003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:48:31,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:48:31,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:48:31,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430679742] [2023-08-29 16:48:31,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:48:31,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:48:31,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:48:31,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:48:31,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:48:31,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 617 [2023-08-29 16:48:31,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:48:31,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 617 [2023-08-29 16:48:31,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:48:31,564 INFO L130 PetriNetUnfolder]: 148/493 cut-off events. [2023-08-29 16:48:31,565 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2023-08-29 16:48:31,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 493 events. 148/493 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2019 event pairs, 110 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 791. Up to 294 conditions per place. [2023-08-29 16:48:31,567 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 38 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2023-08-29 16:48:31,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 244 flow [2023-08-29 16:48:31,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:48:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:48:31,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2023-08-29 16:48:31,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4484062668827661 [2023-08-29 16:48:31,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2023-08-29 16:48:31,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2023-08-29 16:48:31,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:48:31,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2023-08-29 16:48:31,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 617.0) internal successors, (2468), 4 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,578 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 162 flow. Second operand 3 states and 830 transitions. [2023-08-29 16:48:31,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 244 flow [2023-08-29 16:48:31,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:48:31,581 INFO L231 Difference]: Finished difference. Result has 76 places, 78 transitions, 174 flow [2023-08-29 16:48:31,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=76, PETRI_TRANSITIONS=78} [2023-08-29 16:48:31,583 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -22 predicate places. [2023-08-29 16:48:31,583 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 78 transitions, 174 flow [2023-08-29 16:48:31,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:31,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:48:31,584 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-29 16:48:31,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:48:31,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 16:48:31,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:48:31,586 INFO L85 PathProgramCache]: Analyzing trace with hash 649814647, now seen corresponding path program 1 times [2023-08-29 16:48:31,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:48:31,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677808659] [2023-08-29 16:48:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:48:31,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:48:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:48:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 16:48:31,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:48:31,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677808659] [2023-08-29 16:48:31,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677808659] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 16:48:31,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887894038] [2023-08-29 16:48:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:48:31,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:48:31,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:48:31,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 16:48:31,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 16:48:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:48:31,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 16:48:31,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 16:48:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 16:48:32,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 16:48:32,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 16:48:32,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887894038] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 16:48:32,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 16:48:32,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 16:48:32,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731067801] [2023-08-29 16:48:32,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 16:48:32,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 16:48:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:48:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 16:48:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-08-29 16:48:32,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 617 [2023-08-29 16:48:32,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 262.57142857142856) internal successors, (1838), 7 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:32,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:48:32,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 617 [2023-08-29 16:48:32,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:48:32,586 INFO L130 PetriNetUnfolder]: 148/494 cut-off events. [2023-08-29 16:48:32,587 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2023-08-29 16:48:32,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 494 events. 148/494 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2019 event pairs, 110 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 799. Up to 294 conditions per place. [2023-08-29 16:48:32,589 INFO L137 encePairwiseOnDemand]: 614/617 looper letters, 38 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2023-08-29 16:48:32,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 260 flow [2023-08-29 16:48:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 16:48:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 16:48:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1086 transitions. [2023-08-29 16:48:32,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.440032414910859 [2023-08-29 16:48:32,593 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1086 transitions. [2023-08-29 16:48:32,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1086 transitions. [2023-08-29 16:48:32,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:48:32,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1086 transitions. [2023-08-29 16:48:32,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 271.5) internal successors, (1086), 4 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:32,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 617.0) internal successors, (3085), 5 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:32,601 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 617.0) internal successors, (3085), 5 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:32,601 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 174 flow. Second operand 4 states and 1086 transitions. [2023-08-29 16:48:32,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 260 flow [2023-08-29 16:48:32,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 256 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 16:48:32,604 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 186 flow [2023-08-29 16:48:32,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=617, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2023-08-29 16:48:32,606 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, -19 predicate places. [2023-08-29 16:48:32,606 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 186 flow [2023-08-29 16:48:32,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 262.57142857142856) internal successors, (1838), 7 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:48:32,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:48:32,608 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-08-29 16:48:32,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 16:48:32,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:48:32,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-29 16:48:32,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:48:32,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2010660086, now seen corresponding path program 2 times [2023-08-29 16:48:32,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:48:32,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661652079] [2023-08-29 16:48:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:48:32,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:48:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:48:32,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 16:48:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:48:32,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 16:48:32,918 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 16:48:32,919 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2023-08-29 16:48:32,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-08-29 16:48:32,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-08-29 16:48:32,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-08-29 16:48:32,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-08-29 16:48:32,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-08-29 16:48:32,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-08-29 16:48:32,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-08-29 16:48:32,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-08-29 16:48:32,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-08-29 16:48:32,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-08-29 16:48:32,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-08-29 16:48:32,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-08-29 16:48:32,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-08-29 16:48:32,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-08-29 16:48:32,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-08-29 16:48:32,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-08-29 16:48:32,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-08-29 16:48:32,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-08-29 16:48:32,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-08-29 16:48:32,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-08-29 16:48:32,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-08-29 16:48:32,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-08-29 16:48:32,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-08-29 16:48:32,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-08-29 16:48:32,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-08-29 16:48:32,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-08-29 16:48:32,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-08-29 16:48:32,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-08-29 16:48:32,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-08-29 16:48:32,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-08-29 16:48:32,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-08-29 16:48:32,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-08-29 16:48:32,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-08-29 16:48:32,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-08-29 16:48:32,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-08-29 16:48:32,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2023-08-29 16:48:32,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2023-08-29 16:48:32,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-08-29 16:48:32,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-08-29 16:48:32,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-08-29 16:48:32,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-08-29 16:48:32,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-08-29 16:48:32,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-08-29 16:48:32,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-08-29 16:48:32,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-08-29 16:48:32,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-08-29 16:48:32,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-08-29 16:48:32,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-08-29 16:48:32,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-08-29 16:48:32,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-08-29 16:48:32,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-08-29 16:48:32,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-08-29 16:48:32,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-08-29 16:48:32,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-08-29 16:48:32,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-08-29 16:48:32,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-08-29 16:48:32,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-08-29 16:48:32,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-08-29 16:48:32,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-08-29 16:48:32,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:48:32,954 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-29 16:48:32,956 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 16:48:32,956 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 16:48:33,075 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 16:48:33,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 514 places, 539 transitions, 1096 flow [2023-08-29 16:48:33,239 INFO L130 PetriNetUnfolder]: 36/607 cut-off events. [2023-08-29 16:48:33,239 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 16:48:33,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 607 events. 36/607 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2208 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 486. Up to 8 conditions per place. [2023-08-29 16:48:33,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 514 places, 539 transitions, 1096 flow [2023-08-29 16:48:33,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 514 places, 539 transitions, 1096 flow [2023-08-29 16:48:33,257 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:48:33,257 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 539 transitions, 1096 flow [2023-08-29 16:48:33,258 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 539 transitions, 1096 flow [2023-08-29 16:48:33,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 514 places, 539 transitions, 1096 flow [2023-08-29 16:48:33,419 INFO L130 PetriNetUnfolder]: 36/607 cut-off events. [2023-08-29 16:48:33,432 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 16:48:33,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 607 events. 36/607 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2208 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 486. Up to 8 conditions per place. [2023-08-29 16:48:33,517 INFO L119 LiptonReduction]: Number of co-enabled transitions 125528 [2023-08-29 16:50:02,954 INFO L134 LiptonReduction]: Checked pairs total: 366484 [2023-08-29 16:50:02,955 INFO L136 LiptonReduction]: Total number of compositions: 478 [2023-08-29 16:50:02,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:50:02,957 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bcad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:50:02,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2023-08-29 16:50:02,958 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:50:02,958 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:50:02,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:50:02,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:50:02,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-08-29 16:50:02,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:50:02,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2947, now seen corresponding path program 1 times [2023-08-29 16:50:02,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:50:02,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642970939] [2023-08-29 16:50:02,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:50:02,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:50:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:50:02,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:50:02,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:50:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642970939] [2023-08-29 16:50:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642970939] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:50:02,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:50:02,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:50:02,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028759472] [2023-08-29 16:50:02,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:50:02,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:50:02,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:50:02,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:50:02,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:50:02,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 1017 [2023-08-29 16:50:02,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 208 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:02,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:50:02,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 1017 [2023-08-29 16:50:02,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:50:06,184 INFO L130 PetriNetUnfolder]: 12119/23815 cut-off events. [2023-08-29 16:50:06,184 INFO L131 PetriNetUnfolder]: For 309/359 co-relation queries the response was YES. [2023-08-29 16:50:06,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41839 conditions, 23815 events. 12119/23815 cut-off events. For 309/359 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 199811 event pairs, 9860 based on Foata normal form. 742/19733 useless extension candidates. Maximal degree in co-relation 34919. Up to 17857 conditions per place. [2023-08-29 16:50:06,381 INFO L137 encePairwiseOnDemand]: 963/1017 looper letters, 83 selfloop transitions, 0 changer transitions 0/154 dead transitions. [2023-08-29 16:50:06,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 154 transitions, 492 flow [2023-08-29 16:50:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:50:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:50:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1045 transitions. [2023-08-29 16:50:06,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137659783677483 [2023-08-29 16:50:06,385 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1045 transitions. [2023-08-29 16:50:06,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1045 transitions. [2023-08-29 16:50:06,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:50:06,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1045 transitions. [2023-08-29 16:50:06,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 522.5) internal successors, (1045), 2 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:06,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1017.0) internal successors, (3051), 3 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:06,394 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1017.0) internal successors, (3051), 3 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:06,394 INFO L175 Difference]: Start difference. First operand has 190 places, 208 transitions, 434 flow. Second operand 2 states and 1045 transitions. [2023-08-29 16:50:06,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 154 transitions, 492 flow [2023-08-29 16:50:06,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 154 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:50:06,398 INFO L231 Difference]: Finished difference. Result has 145 places, 154 transitions, 326 flow [2023-08-29 16:50:06,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1017, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=326, PETRI_PLACES=145, PETRI_TRANSITIONS=154} [2023-08-29 16:50:06,399 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -45 predicate places. [2023-08-29 16:50:06,399 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 154 transitions, 326 flow [2023-08-29 16:50:06,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:06,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:50:06,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:50:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 16:50:06,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-08-29 16:50:06,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:50:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 265160717, now seen corresponding path program 1 times [2023-08-29 16:50:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:50:06,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328807071] [2023-08-29 16:50:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:50:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:50:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:50:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:50:06,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:50:06,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328807071] [2023-08-29 16:50:06,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328807071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:50:06,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:50:06,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:50:06,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325314517] [2023-08-29 16:50:06,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:50:06,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:50:06,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:50:06,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:50:06,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:50:06,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 1017 [2023-08-29 16:50:06,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 154 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:06,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:50:06,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 1017 [2023-08-29 16:50:06,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:50:08,806 INFO L130 PetriNetUnfolder]: 12119/23816 cut-off events. [2023-08-29 16:50:08,806 INFO L131 PetriNetUnfolder]: For 309/359 co-relation queries the response was YES. [2023-08-29 16:50:08,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41842 conditions, 23816 events. 12119/23816 cut-off events. For 309/359 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 199823 event pairs, 9860 based on Foata normal form. 0/18992 useless extension candidates. Maximal degree in co-relation 41837. Up to 17857 conditions per place. [2023-08-29 16:50:08,929 INFO L137 encePairwiseOnDemand]: 1014/1017 looper letters, 82 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-08-29 16:50:08,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 155 transitions, 496 flow [2023-08-29 16:50:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:50:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:50:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2023-08-29 16:50:08,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4693543100622747 [2023-08-29 16:50:08,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2023-08-29 16:50:08,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2023-08-29 16:50:08,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:50:08,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2023-08-29 16:50:08,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:08,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1017.0) internal successors, (4068), 4 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:08,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1017.0) internal successors, (4068), 4 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:08,947 INFO L175 Difference]: Start difference. First operand has 145 places, 154 transitions, 326 flow. Second operand 3 states and 1432 transitions. [2023-08-29 16:50:08,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 155 transitions, 496 flow [2023-08-29 16:50:08,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 155 transitions, 496 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:50:08,954 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 338 flow [2023-08-29 16:50:08,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1017, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2023-08-29 16:50:08,958 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -42 predicate places. [2023-08-29 16:50:08,958 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 338 flow [2023-08-29 16:50:08,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:08,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:50:08,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:50:08,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 16:50:08,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-08-29 16:50:08,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:50:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1462094878, now seen corresponding path program 1 times [2023-08-29 16:50:08,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:50:08,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067138959] [2023-08-29 16:50:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:50:08,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:50:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:50:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 16:50:09,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:50:09,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067138959] [2023-08-29 16:50:09,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067138959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:50:09,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:50:09,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:50:09,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655712965] [2023-08-29 16:50:09,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:50:09,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:50:09,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:50:09,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:50:09,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:50:09,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 1017 [2023-08-29 16:50:09,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:09,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:50:09,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 1017 [2023-08-29 16:50:09,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:50:11,354 INFO L130 PetriNetUnfolder]: 10059/21500 cut-off events. [2023-08-29 16:50:11,354 INFO L131 PetriNetUnfolder]: For 271/271 co-relation queries the response was YES. [2023-08-29 16:50:11,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36641 conditions, 21500 events. 10059/21500 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 192991 event pairs, 5036 based on Foata normal form. 0/17677 useless extension candidates. Maximal degree in co-relation 36634. Up to 8660 conditions per place. [2023-08-29 16:50:11,463 INFO L137 encePairwiseOnDemand]: 1012/1017 looper letters, 156 selfloop transitions, 4 changer transitions 0/231 dead transitions. [2023-08-29 16:50:11,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 231 transitions, 816 flow [2023-08-29 16:50:11,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:50:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:50:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1499 transitions. [2023-08-29 16:50:11,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49131432317273027 [2023-08-29 16:50:11,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1499 transitions. [2023-08-29 16:50:11,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1499 transitions. [2023-08-29 16:50:11,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:50:11,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1499 transitions. [2023-08-29 16:50:11,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 499.6666666666667) internal successors, (1499), 3 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:11,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1017.0) internal successors, (4068), 4 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:11,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1017.0) internal successors, (4068), 4 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:11,478 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 338 flow. Second operand 3 states and 1499 transitions. [2023-08-29 16:50:11,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 231 transitions, 816 flow [2023-08-29 16:50:11,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 231 transitions, 812 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 16:50:11,483 INFO L231 Difference]: Finished difference. Result has 150 places, 157 transitions, 356 flow [2023-08-29 16:50:11,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1017, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=150, PETRI_TRANSITIONS=157} [2023-08-29 16:50:11,484 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -40 predicate places. [2023-08-29 16:50:11,484 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 157 transitions, 356 flow [2023-08-29 16:50:11,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:11,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:50:11,485 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-08-29 16:50:11,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 16:50:11,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-08-29 16:50:11,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:50:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash 491382300, now seen corresponding path program 1 times [2023-08-29 16:50:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:50:11,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987594678] [2023-08-29 16:50:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:50:11,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:50:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:50:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-29 16:50:11,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:50:11,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987594678] [2023-08-29 16:50:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987594678] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 16:50:11,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253307637] [2023-08-29 16:50:11,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:50:11,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:50:11,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:50:11,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 16:50:11,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 16:50:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:50:11,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 16:50:11,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 16:50:11,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-29 16:50:11,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 16:50:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-29 16:50:11,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253307637] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 16:50:11,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 16:50:11,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-29 16:50:11,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069693923] [2023-08-29 16:50:11,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 16:50:11,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 16:50:11,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:50:11,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 16:50:11,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-08-29 16:50:11,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 1017 [2023-08-29 16:50:11,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 157 transitions, 356 flow. Second operand has 8 states, 8 states have (on average 448.625) internal successors, (3589), 8 states have internal predecessors, (3589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:11,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:50:11,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 1017 [2023-08-29 16:50:11,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:50:14,129 INFO L130 PetriNetUnfolder]: 10059/20110 cut-off events. [2023-08-29 16:50:14,129 INFO L131 PetriNetUnfolder]: For 4160/4219 co-relation queries the response was YES. [2023-08-29 16:50:14,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37321 conditions, 20110 events. 10059/20110 cut-off events. For 4160/4219 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 167549 event pairs, 8179 based on Foata normal form. 1/17606 useless extension candidates. Maximal degree in co-relation 37313. Up to 14958 conditions per place. [2023-08-29 16:50:14,266 INFO L137 encePairwiseOnDemand]: 1014/1017 looper letters, 84 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2023-08-29 16:50:14,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 158 transitions, 534 flow [2023-08-29 16:50:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 16:50:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 16:50:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1874 transitions. [2023-08-29 16:50:14,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606686332350049 [2023-08-29 16:50:14,272 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1874 transitions. [2023-08-29 16:50:14,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1874 transitions. [2023-08-29 16:50:14,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:50:14,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1874 transitions. [2023-08-29 16:50:14,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 468.5) internal successors, (1874), 4 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:14,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1017.0) internal successors, (5085), 5 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:14,287 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1017.0) internal successors, (5085), 5 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:14,287 INFO L175 Difference]: Start difference. First operand has 150 places, 157 transitions, 356 flow. Second operand 4 states and 1874 transitions. [2023-08-29 16:50:14,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 158 transitions, 534 flow [2023-08-29 16:50:14,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 158 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:50:14,298 INFO L231 Difference]: Finished difference. Result has 153 places, 158 transitions, 368 flow [2023-08-29 16:50:14,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1017, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=368, PETRI_PLACES=153, PETRI_TRANSITIONS=158} [2023-08-29 16:50:14,299 INFO L281 CegarLoopForPetriNet]: 190 programPoint places, -37 predicate places. [2023-08-29 16:50:14,299 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 158 transitions, 368 flow [2023-08-29 16:50:14,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 448.625) internal successors, (3589), 8 states have internal predecessors, (3589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:50:14,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:50:14,301 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-29 16:50:14,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 16:50:14,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-29 16:50:14,507 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2023-08-29 16:50:14,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:50:14,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1408288339, now seen corresponding path program 2 times [2023-08-29 16:50:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:50:14,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22027424] [2023-08-29 16:50:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:50:14,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:50:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:50:14,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 16:50:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:50:14,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 16:50:14,596 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 16:50:14,597 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (86 of 87 remaining) [2023-08-29 16:50:14,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (85 of 87 remaining) [2023-08-29 16:50:14,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (84 of 87 remaining) [2023-08-29 16:50:14,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (83 of 87 remaining) [2023-08-29 16:50:14,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (82 of 87 remaining) [2023-08-29 16:50:14,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (81 of 87 remaining) [2023-08-29 16:50:14,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (80 of 87 remaining) [2023-08-29 16:50:14,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (79 of 87 remaining) [2023-08-29 16:50:14,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (78 of 87 remaining) [2023-08-29 16:50:14,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (77 of 87 remaining) [2023-08-29 16:50:14,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (76 of 87 remaining) [2023-08-29 16:50:14,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (75 of 87 remaining) [2023-08-29 16:50:14,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (74 of 87 remaining) [2023-08-29 16:50:14,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (73 of 87 remaining) [2023-08-29 16:50:14,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (72 of 87 remaining) [2023-08-29 16:50:14,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (71 of 87 remaining) [2023-08-29 16:50:14,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (70 of 87 remaining) [2023-08-29 16:50:14,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (69 of 87 remaining) [2023-08-29 16:50:14,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (68 of 87 remaining) [2023-08-29 16:50:14,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (67 of 87 remaining) [2023-08-29 16:50:14,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (66 of 87 remaining) [2023-08-29 16:50:14,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (65 of 87 remaining) [2023-08-29 16:50:14,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (64 of 87 remaining) [2023-08-29 16:50:14,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (63 of 87 remaining) [2023-08-29 16:50:14,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (62 of 87 remaining) [2023-08-29 16:50:14,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (61 of 87 remaining) [2023-08-29 16:50:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (60 of 87 remaining) [2023-08-29 16:50:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (59 of 87 remaining) [2023-08-29 16:50:14,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (58 of 87 remaining) [2023-08-29 16:50:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (57 of 87 remaining) [2023-08-29 16:50:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (56 of 87 remaining) [2023-08-29 16:50:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (55 of 87 remaining) [2023-08-29 16:50:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (54 of 87 remaining) [2023-08-29 16:50:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 87 remaining) [2023-08-29 16:50:14,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (52 of 87 remaining) [2023-08-29 16:50:14,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (51 of 87 remaining) [2023-08-29 16:50:14,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (50 of 87 remaining) [2023-08-29 16:50:14,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (49 of 87 remaining) [2023-08-29 16:50:14,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (48 of 87 remaining) [2023-08-29 16:50:14,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (47 of 87 remaining) [2023-08-29 16:50:14,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (46 of 87 remaining) [2023-08-29 16:50:14,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 87 remaining) [2023-08-29 16:50:14,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 87 remaining) [2023-08-29 16:50:14,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 87 remaining) [2023-08-29 16:50:14,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 87 remaining) [2023-08-29 16:50:14,607 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (41 of 87 remaining) [2023-08-29 16:50:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (40 of 87 remaining) [2023-08-29 16:50:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (39 of 87 remaining) [2023-08-29 16:50:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (38 of 87 remaining) [2023-08-29 16:50:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (37 of 87 remaining) [2023-08-29 16:50:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (36 of 87 remaining) [2023-08-29 16:50:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (35 of 87 remaining) [2023-08-29 16:50:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (34 of 87 remaining) [2023-08-29 16:50:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (33 of 87 remaining) [2023-08-29 16:50:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (32 of 87 remaining) [2023-08-29 16:50:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 87 remaining) [2023-08-29 16:50:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 87 remaining) [2023-08-29 16:50:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 87 remaining) [2023-08-29 16:50:14,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 87 remaining) [2023-08-29 16:50:14,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 87 remaining) [2023-08-29 16:50:14,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 87 remaining) [2023-08-29 16:50:14,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (25 of 87 remaining) [2023-08-29 16:50:14,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (24 of 87 remaining) [2023-08-29 16:50:14,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 87 remaining) [2023-08-29 16:50:14,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (22 of 87 remaining) [2023-08-29 16:50:14,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 87 remaining) [2023-08-29 16:50:14,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 87 remaining) [2023-08-29 16:50:14,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (19 of 87 remaining) [2023-08-29 16:50:14,611 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 87 remaining) [2023-08-29 16:50:14,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 87 remaining) [2023-08-29 16:50:14,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 87 remaining) [2023-08-29 16:50:14,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 87 remaining) [2023-08-29 16:50:14,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 87 remaining) [2023-08-29 16:50:14,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 87 remaining) [2023-08-29 16:50:14,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (12 of 87 remaining) [2023-08-29 16:50:14,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (11 of 87 remaining) [2023-08-29 16:50:14,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (10 of 87 remaining) [2023-08-29 16:50:14,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (9 of 87 remaining) [2023-08-29 16:50:14,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (8 of 87 remaining) [2023-08-29 16:50:14,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (7 of 87 remaining) [2023-08-29 16:50:14,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (6 of 87 remaining) [2023-08-29 16:50:14,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (5 of 87 remaining) [2023-08-29 16:50:14,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 87 remaining) [2023-08-29 16:50:14,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 87 remaining) [2023-08-29 16:50:14,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 87 remaining) [2023-08-29 16:50:14,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 87 remaining) [2023-08-29 16:50:14,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 87 remaining) [2023-08-29 16:50:14,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 16:50:14,616 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-29 16:50:14,616 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 16:50:14,617 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 16:50:14,737 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 16:50:14,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 726 places, 762 transitions, 1554 flow [2023-08-29 16:50:15,037 INFO L130 PetriNetUnfolder]: 58/917 cut-off events. [2023-08-29 16:50:15,038 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 16:50:15,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 917 events. 58/917 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4436 event pairs, 1 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 747. Up to 16 conditions per place. [2023-08-29 16:50:15,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 726 places, 762 transitions, 1554 flow [2023-08-29 16:50:15,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 726 places, 762 transitions, 1554 flow [2023-08-29 16:50:15,090 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:50:15,090 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 726 places, 762 transitions, 1554 flow [2023-08-29 16:50:15,090 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 726 places, 762 transitions, 1554 flow [2023-08-29 16:50:15,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 726 places, 762 transitions, 1554 flow [2023-08-29 16:50:15,390 INFO L130 PetriNetUnfolder]: 58/917 cut-off events. [2023-08-29 16:50:15,390 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 16:50:15,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 917 events. 58/917 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4436 event pairs, 1 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 747. Up to 16 conditions per place. [2023-08-29 16:50:15,494 INFO L119 LiptonReduction]: Number of co-enabled transitions 336804 [2023-08-29 16:52:03,918 INFO L134 LiptonReduction]: Checked pairs total: 984872 [2023-08-29 16:52:03,918 INFO L136 LiptonReduction]: Total number of compositions: 669 [2023-08-29 16:52:03,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:52:03,920 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4bcad113, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:52:03,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2023-08-29 16:52:03,921 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:52:03,921 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:52:03,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:52:03,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:52:03,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-08-29 16:52:03,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:52:03,922 INFO L85 PathProgramCache]: Analyzing trace with hash 4602, now seen corresponding path program 1 times [2023-08-29 16:52:03,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:52:03,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22119162] [2023-08-29 16:52:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:52:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:52:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:52:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:52:03,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:52:03,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22119162] [2023-08-29 16:52:03,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22119162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:52:03,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:52:03,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:52:03,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865773466] [2023-08-29 16:52:03,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:52:03,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:52:03,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:52:03,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:52:03,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:52:03,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 640 out of 1431 [2023-08-29 16:52:03,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 298 transitions, 626 flow. Second operand has 2 states, 2 states have (on average 640.5) internal successors, (1281), 2 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:52:03,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:52:03,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 640 of 1431 [2023-08-29 16:52:03,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:53:17,850 INFO L130 PetriNetUnfolder]: 504809/814756 cut-off events. [2023-08-29 16:53:17,850 INFO L131 PetriNetUnfolder]: For 13116/13669 co-relation queries the response was YES. [2023-08-29 16:53:19,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1479892 conditions, 814756 events. 504809/814756 cut-off events. For 13116/13669 co-relation queries the response was YES. Maximal size of possible extension queue 12688. Compared 8471715 event pairs, 409875 based on Foata normal form. 24799/680333 useless extension candidates. Maximal degree in co-relation 538201. Up to 658919 conditions per place. [2023-08-29 16:53:22,951 INFO L137 encePairwiseOnDemand]: 1353/1431 looper letters, 116 selfloop transitions, 0 changer transitions 0/218 dead transitions. [2023-08-29 16:53:22,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 218 transitions, 698 flow [2023-08-29 16:53:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:53:22,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:53:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1474 transitions. [2023-08-29 16:53:22,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5150244584206848 [2023-08-29 16:53:22,955 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1474 transitions. [2023-08-29 16:53:22,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1474 transitions. [2023-08-29 16:53:22,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:53:22,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1474 transitions. [2023-08-29 16:53:22,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 737.0) internal successors, (1474), 2 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:53:22,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1431.0) internal successors, (4293), 3 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:53:22,967 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1431.0) internal successors, (4293), 3 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:53:22,970 INFO L175 Difference]: Start difference. First operand has 272 places, 298 transitions, 626 flow. Second operand 2 states and 1474 transitions. [2023-08-29 16:53:22,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 218 transitions, 698 flow [2023-08-29 16:53:22,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 218 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:53:22,979 INFO L231 Difference]: Finished difference. Result has 204 places, 218 transitions, 466 flow [2023-08-29 16:53:22,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1431, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=466, PETRI_PLACES=204, PETRI_TRANSITIONS=218} [2023-08-29 16:53:22,981 INFO L281 CegarLoopForPetriNet]: 272 programPoint places, -68 predicate places. [2023-08-29 16:53:22,981 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 218 transitions, 466 flow [2023-08-29 16:53:22,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 640.5) internal successors, (1281), 2 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:53:22,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:53:22,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:53:22,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 16:53:22,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-08-29 16:53:22,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:53:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1864749903, now seen corresponding path program 1 times [2023-08-29 16:53:22,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:53:22,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996437254] [2023-08-29 16:53:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:53:22,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:53:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:53:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:53:23,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:53:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996437254] [2023-08-29 16:53:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996437254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:53:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:53:23,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:53:23,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124039011] [2023-08-29 16:53:23,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:53:23,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:53:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:53:23,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:53:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:53:23,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 632 out of 1431 [2023-08-29 16:53:23,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 218 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 3 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:53:23,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:53:23,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 632 of 1431 [2023-08-29 16:53:23,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:54:32,394 INFO L130 PetriNetUnfolder]: 425108/728604 cut-off events. [2023-08-29 16:54:32,395 INFO L131 PetriNetUnfolder]: For 13520/13520 co-relation queries the response was YES. [2023-08-29 16:54:34,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292665 conditions, 728604 events. 425108/728604 cut-off events. For 13520/13520 co-relation queries the response was YES. Maximal size of possible extension queue 11697. Compared 8213285 event pairs, 173728 based on Foata normal form. 0/606802 useless extension candidates. Maximal degree in co-relation 1292659. Up to 330264 conditions per place. [2023-08-29 16:54:36,706 INFO L137 encePairwiseOnDemand]: 1426/1431 looper letters, 220 selfloop transitions, 4 changer transitions 0/326 dead transitions. [2023-08-29 16:54:36,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 326 transitions, 1139 flow [2023-08-29 16:54:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:54:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:54:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2122 transitions. [2023-08-29 16:54:36,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49429303517353834 [2023-08-29 16:54:36,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2122 transitions. [2023-08-29 16:54:36,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2122 transitions. [2023-08-29 16:54:36,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:54:36,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2122 transitions. [2023-08-29 16:54:36,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 707.3333333333334) internal successors, (2122), 3 states have internal predecessors, (2122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:54:36,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1431.0) internal successors, (5724), 4 states have internal predecessors, (5724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:54:36,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1431.0) internal successors, (5724), 4 states have internal predecessors, (5724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:54:36,722 INFO L175 Difference]: Start difference. First operand has 204 places, 218 transitions, 466 flow. Second operand 3 states and 2122 transitions. [2023-08-29 16:54:36,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 326 transitions, 1139 flow [2023-08-29 16:54:36,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 326 transitions, 1139 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:54:36,737 INFO L231 Difference]: Finished difference. Result has 207 places, 220 transitions, 488 flow [2023-08-29 16:54:36,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1431, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=207, PETRI_TRANSITIONS=220} [2023-08-29 16:54:36,738 INFO L281 CegarLoopForPetriNet]: 272 programPoint places, -65 predicate places. [2023-08-29 16:54:36,738 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 220 transitions, 488 flow [2023-08-29 16:54:36,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 633.3333333333334) internal successors, (1900), 3 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:54:36,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:54:36,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:54:36,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 16:54:36,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-08-29 16:54:36,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:54:36,739 INFO L85 PathProgramCache]: Analyzing trace with hash 177887812, now seen corresponding path program 1 times [2023-08-29 16:54:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:54:36,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394915999] [2023-08-29 16:54:36,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:54:36,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:54:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:54:36,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:54:36,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:54:36,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394915999] [2023-08-29 16:54:36,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394915999] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 16:54:36,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253617768] [2023-08-29 16:54:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:54:36,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:54:36,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:54:36,808 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 16:54:36,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 16:54:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:54:36,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-29 16:54:36,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 16:54:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 16:54:37,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 16:54:37,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253617768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:54:37,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 16:54:37,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-08-29 16:54:37,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55120494] [2023-08-29 16:54:37,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:54:37,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:54:37,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:54:37,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:54:37,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 16:54:37,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 635 out of 1431 [2023-08-29 16:54:37,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 220 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:54:37,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:54:37,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 635 of 1431 [2023-08-29 16:54:37,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:55:46,117 INFO L130 PetriNetUnfolder]: 425108/691408 cut-off events. [2023-08-29 16:55:46,117 INFO L131 PetriNetUnfolder]: For 115786/116336 co-relation queries the response was YES. [2023-08-29 16:55:48,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1311710 conditions, 691408 events. 425108/691408 cut-off events. For 115786/116336 co-relation queries the response was YES. Maximal size of possible extension queue 10979. Compared 7163639 event pairs, 345115 based on Foata normal form. 1/598784 useless extension candidates. Maximal degree in co-relation 1311702. Up to 557469 conditions per place. [2023-08-29 16:55:50,639 INFO L137 encePairwiseOnDemand]: 1428/1431 looper letters, 117 selfloop transitions, 2 changer transitions 0/221 dead transitions. [2023-08-29 16:55:50,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 221 transitions, 728 flow [2023-08-29 16:55:50,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:55:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:55:50,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2023-08-29 16:55:50,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.471232238527836 [2023-08-29 16:55:50,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2023-08-29 16:55:50,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2023-08-29 16:55:50,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:55:50,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2023-08-29 16:55:50,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:55:50,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1431.0) internal successors, (5724), 4 states have internal predecessors, (5724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:55:50,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1431.0) internal successors, (5724), 4 states have internal predecessors, (5724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:55:50,656 INFO L175 Difference]: Start difference. First operand has 207 places, 220 transitions, 488 flow. Second operand 3 states and 2023 transitions. [2023-08-29 16:55:50,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 221 transitions, 728 flow [2023-08-29 16:55:51,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 221 transitions, 724 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:55:51,385 INFO L231 Difference]: Finished difference. Result has 209 places, 221 transitions, 496 flow [2023-08-29 16:55:51,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1431, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=209, PETRI_TRANSITIONS=221} [2023-08-29 16:55:51,386 INFO L281 CegarLoopForPetriNet]: 272 programPoint places, -63 predicate places. [2023-08-29 16:55:51,386 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 221 transitions, 496 flow [2023-08-29 16:55:51,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:55:51,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:55:51,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:55:51,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 16:55:51,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:55:51,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-08-29 16:55:51,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:55:51,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2137423397, now seen corresponding path program 1 times [2023-08-29 16:55:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:55:51,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026138136] [2023-08-29 16:55:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:55:51,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:55:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:55:51,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 16:55:51,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:55:51,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026138136] [2023-08-29 16:55:51,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026138136] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 16:55:51,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30156764] [2023-08-29 16:55:51,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:55:51,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:55:51,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:55:51,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 16:55:51,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 16:55:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:55:51,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 16:55:51,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 16:55:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 16:55:51,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 16:55:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 16:55:51,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30156764] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 16:55:51,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 16:55:51,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-29 16:55:51,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475271028] [2023-08-29 16:55:51,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 16:55:51,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 16:55:51,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:55:51,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 16:55:51,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-08-29 16:55:52,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 1431 [2023-08-29 16:55:52,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 221 transitions, 496 flow. Second operand has 8 states, 8 states have (on average 627.25) internal successors, (5018), 8 states have internal predecessors, (5018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:55:52,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:55:52,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 1431 [2023-08-29 16:55:52,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:57:11,217 INFO L130 PetriNetUnfolder]: 419329/732612 cut-off events. [2023-08-29 16:57:11,218 INFO L131 PetriNetUnfolder]: For 65889/65889 co-relation queries the response was YES. [2023-08-29 16:57:13,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1340158 conditions, 732612 events. 419329/732612 cut-off events. For 65889/65889 co-relation queries the response was YES. Maximal size of possible extension queue 11770. Compared 8468806 event pairs, 132523 based on Foata normal form. 2553/636044 useless extension candidates. Maximal degree in co-relation 1340149. Up to 303041 conditions per place. [2023-08-29 16:57:16,166 INFO L137 encePairwiseOnDemand]: 1424/1431 looper letters, 325 selfloop transitions, 9 changer transitions 0/436 dead transitions. [2023-08-29 16:57:16,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 436 transitions, 1618 flow [2023-08-29 16:57:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:57:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:57:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4087 transitions. [2023-08-29 16:57:16,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4760074539948754 [2023-08-29 16:57:16,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4087 transitions. [2023-08-29 16:57:16,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4087 transitions. [2023-08-29 16:57:16,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:57:16,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4087 transitions. [2023-08-29 16:57:16,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 681.1666666666666) internal successors, (4087), 6 states have internal predecessors, (4087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:57:16,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1431.0) internal successors, (10017), 7 states have internal predecessors, (10017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:57:16,199 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1431.0) internal successors, (10017), 7 states have internal predecessors, (10017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:57:16,200 INFO L175 Difference]: Start difference. First operand has 209 places, 221 transitions, 496 flow. Second operand 6 states and 4087 transitions. [2023-08-29 16:57:16,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 436 transitions, 1618 flow [2023-08-29 16:57:16,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 436 transitions, 1614 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 16:57:16,211 INFO L231 Difference]: Finished difference. Result has 215 places, 224 transitions, 536 flow [2023-08-29 16:57:16,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1431, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=215, PETRI_TRANSITIONS=224} [2023-08-29 16:57:16,212 INFO L281 CegarLoopForPetriNet]: 272 programPoint places, -57 predicate places. [2023-08-29 16:57:16,212 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 224 transitions, 536 flow [2023-08-29 16:57:16,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 627.25) internal successors, (5018), 8 states have internal predecessors, (5018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:57:16,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:57:16,214 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:57:16,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-29 16:57:16,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 16:57:16,421 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-08-29 16:57:16,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:57:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash 794075484, now seen corresponding path program 1 times [2023-08-29 16:57:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:57:16,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564679298] [2023-08-29 16:57:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:57:16,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:57:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:57:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 16:57:16,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:57:16,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564679298] [2023-08-29 16:57:16,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564679298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:57:16,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:57:16,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:57:16,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918084625] [2023-08-29 16:57:16,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:57:16,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:57:16,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:57:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:57:16,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:57:17,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 1431 [2023-08-29 16:57:17,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 224 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 606.3333333333334) internal successors, (3638), 6 states have internal predecessors, (3638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:57:17,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:57:17,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 1431 [2023-08-29 16:57:17,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15